本文从 2 1世纪图书馆发展趋势角度进行思考 ,提出 :图书馆在网络时代传统边界趋向消亡 ,同时产生一种新边界的观念。本文从理论角度分析这种消亡符合运动发展规律 ,消亡也要具备一定环境条件 ,同时也提出旧边界消亡之后将产生出的种种效应。文章还提出要重新构建新边界体系下的新秩序 This article from the perspective of the development trend of the library in the 21st century, puts forward the idea that the library tends to die out in the Internet era while creating a new boundary. This paper analyzes the demise from a theoretical point of view in line with the laws of the development of the movement, demise also have some environmental conditions, but also put forward the old border will die after the effects. The article also proposes to reconstruct the new order under the new boundary system